A Laboratory Study Of The Collapse Behaviour Of A Compacted Sabkha Soil
Sabkha soils are saline sediments, which can withstand high loads in dry conditions, but upon wetting, they exhibit significant deformation and low shear strength and hence pose great challenge to engineers. This paper investigates the collapsibility of a compacted sabkha soil of Chott El-Hodna (Algeria) using a modified oedometer, which allows water to percolate through […]
Hydromechanical Behavior Of Soil With Tire Fibers
Products derived from tires have been increasingly used for geotechnical engineering applications because of the economic, environmental, and social benefits they provide. The objective of this paper is to analyze the effect of the addition of rubber fibers from unserviceable tires on the hydromechanical behavior of argillaceous soil from the Barreiras Formation, in the Brazilian […]
Geogrid Mechanical Damage Caused By Recycled Construction And Demolition Waste (Rcdw): Influence Of Grain Size Distribution
Recent studies have shown that recycled construction and demolition waste (RCDW) can be used as backfill material in geosynthetics reinforced soil (GRS) structures. However, besides the environmental and economic benefits of this practice, it is necessary to evaluate the mechanical damages that RCDW could cause to the reinforcement elements. This study aims to investigate the […]
Effects Of Hydraulic Gradient Variation On The Structure And Strength Of A Compacted Tropical Soil
Tropical soils have been extensively studied to evaluate the technical feasibility of their application in hydraulic earthworks such as compacted clay barriers in landfills. In these earthworks, the water flow in the porous medium generates percolation forces that can promote structural changes in the soil, with possible deleterious repercussions on its mechanical and hydraulic properties. […]
Spread Footings Bearing On Circular And Square Cement-Stabilized Sand Layers Above Weakly Bonded Residual Soil
The practice of soil-cement reinforced layers to bear shallow foundations is a feasible option in low bearing capacity soils. This paper addresses the interpretation of plate load tests bearing on compacted artificially cemented sand layers of distinct sizes and shapes (cylindrical and prismatic) overlaying a weakly bonded residual soil stratum. Static load tests were carried […]
Experimental, Numerical, And Analytical Investigation Of The Effect Of Compaction-Induced Stress On The Behavior Of Reinforced Soil Walls
The influence of the compaction-induced stress (CIS) is experimentally, numerically and analytically evaluated on the behavior of reinforced soil walls (RSWs), under working stress conditions. Experimental studies have been carried out to evaluate the effect of the compaction condition at the back of the block facing on the behavior of geosynthetic reinforced soil walls using […]
Advances On Dosages For Cement Stabilized Rammed Guabirotuba Silt Depending On Climate Conditions
This paper optimizes and compares the behavior of soil-cement compacted blends against several molding and climate conditions under optimum compaction and non-optimum compaction parameters. For this, an intensive laboratory study of silty soil samples treated with different percentages of high early strength Portland cement (PC) was investigated by a series of compaction, unconfined compressive, splitting […]
The Effect Of Grain Size Of Ground Glass Particles On The Strength Of Green Stabilized Sand
Regular soil improvement techniques customarily involve the use of ordinary Portland cement (OPC) despite the environmental issues related to the production process of such material. Hence, the establishment of alternative binders through the use of industrial and/or urban waste might be an option to overcome part of those problems. For this, a 2k factorial design […]
Mechanical And Environmental Performance Of Polymer Stabilized Iron Ore Tailings
The huge amounts of residues generated by the mining industry have caused a number of environmental problems, not only in Brazil but worldwide. During the extraction of iron ore, the process of beneficiation produces a considerable volume of tailings, making the disposal of these materials a challenge for the environmental and geotechnical engineering. In this […]
Performance Evaluation Of Rigid Inclusion Foundations In The Reduction Of Settlements
In this study, numerical modeling is used to evaluate the performance of rigid inclusion foundations for settlement control considering the characteristic soils of the city of BrasÃlia, Federal District, Brazil. Two- and three-dimensional (2D and 3D) PLAXIS software models were used considering the Hardening Soil constitutive model parameters previously obtained, calibrated and validated by the […]
Pullout Testing Of Soil Nails In Gneissic Residual Soil
Soil nailing has proved to be an efficient and cost-effective stabilization technique, consisting in installing passive reinforcement in the soil that provides the material with tensile and shear strengths. The fundamental parameter in analyzing the mechanical behavior of this type of structure is the frictional resistance of the soil-nail interface, denominated qs. This paper presents […]
On The Durability And Strength Of Compacted Coal Fly Ash-Carbide Lime Blends
Present investigation intends to examine the mechanical behaviour of compacted coal fly ash – carbide lime mixes to assess their potential use as a sub-base/base material for low volume roads. This study plans to compute the impact of carbide lime content and dry density on the properties (durability and strength) of compacted coal fly ash […]
